<template>
    <div class="block">
        <el-carousel trigger="click" height="400px">
          <el-carousel-item v-for="item in 4" :key="item">
            <h3>{{ item }}</h3>
          </el-carousel-item>
        </el-carousel>
      </div>
</template>

<script>
export default {

}
</script>

<style>
.block {  
  width: 100%; /* 或者使用具体的宽度值，比如 600px */  
  margin: auto; /* 水平居中 */  
height: 100%;
}  
  
  .el-carousel__item h3 {
    color: #475669;
    font-size: 14px;
    opacity: 0.75;
    line-height: 150px;
    margin: 0;
  }

  .el-carousel__item:nth-child(2n) {
     background-color: #99a9bf;
  }
  
  .el-carousel__item:nth-child(2n+1) {
     background-color: #d3dce6;
  }
</style>